The article discusses the importance of maintaining the health of trees and forests to ensure optimal wood production and ecosystem stability. By assessing the vitality of trees based on their physical condition, we can better understand their ability to provide essential functions in the forest. This model helps us identify trees and stands that may be struggling due to factors like damage or pests, which can impact overall forest health. Ultimately, the vitality of trees and stands plays a crucial role in sustaining the balance and productivity of forest ecosystems.